Https://tripoto.page.link/X2koAqpWYLmh24bNA Kindly check the above 👆 Tripoto link for more details, if you are planning to do a solo bike travel to Ladakh. Golden eagle expedition is one such group who offer group tours from Delhi and from Manali. There is a combo trip from Delhi to Manali and Leh bike trip. Another trip is only to Leh and ladakh. Kindly check the details via online. Adventure nation is another group who offer bike tours from Manali to Leh and ladakh.
Motorbikee expeditions, Gulliveradventures.com, are some bike groups you could check in. https://tripoto.page.link/EzjKiAeTnpC2YxwV8
Kindly check the above 👆 Tripoto link for more bike travel group trips too.